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Photonic crystal for graphene plasmons.
Xiong, L; Forsythe, C; Jung, M; McLeod, A S; Sunku, S S; Shao, Y M; Ni, G X; Sternbach, A J; Liu, S; Edgar, J H; Mele, E J; Fogler, M M; Shvets, G; Dean, C R; Basov, D N.
Afiliação
  • Xiong L; Department of Physics, Columbia University, New York, NY, 10027, USA.
  • Forsythe C; Department of Physics, Columbia University, New York, NY, 10027, USA.
  • Jung M; Department of Physics, Cornell University, Ithaca, NY, 14853, USA.
  • McLeod AS; Department of Physics, Columbia University, New York, NY, 10027, USA.
  • Sunku SS; Department of Physics, Columbia University, New York, NY, 10027, USA.
  • Shao YM; Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, 10027, USA.
  • Ni GX; Department of Physics, Columbia University, New York, NY, 10027, USA.
  • Sternbach AJ; Department of Physics, Columbia University, New York, NY, 10027, USA.
  • Liu S; Department of Physics, Columbia University, New York, NY, 10027, USA.
  • Edgar JH; The Tim Taylor Department of Chemical Engineering, Kansas State University, Manhattan, KS, 66506, USA.
  • Mele EJ; The Tim Taylor Department of Chemical Engineering, Kansas State University, Manhattan, KS, 66506, USA.
  • Fogler MM; Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, 19104, USA.
  • Shvets G; Department of physics, University of California San Diego, La Jolla, CA, 92093, USA.
  • Dean CR; School of Applied and Engineering Physics, Cornell University, Ithaca, NY, 14853, USA.
  • Basov DN; Department of Physics, Columbia University, New York, NY, 10027, USA.
Nat Commun ; 10(1): 4780, 2019 10 21.
Article em En | MEDLINE | ID: mdl-31636265
ABSTRACT
Photonic crystals are commonly implemented in media with periodically varying optical properties. Photonic crystals enable exquisite control of light propagation in integrated optical circuits, and also emulate advanced physical concepts. However, common photonic crystals are unfit for in-operando on/off controls. We overcome this limitation and demonstrate a broadly tunable two-dimensional photonic crystal for surface plasmon polaritons. Our platform consists of a continuous graphene monolayer integrated in a back-gated platform with nano-structured gate insulators. Infrared nano-imaging reveals the formation of a photonic bandgap and strong modulation of the local plasmonic density of states that can be turned on/off or gradually tuned by the applied gate voltage. We also implement an artificial domain wall which supports highly confined one-dimensional plasmonic modes. Our electrostatically-tunable photonic crystals are derived from standard metal oxide semiconductor field effect transistor technology and pave a way for practical on-chip light manipulation.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article
Texto completo
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PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2019 Tipo de documento: Article